[ Previous | Next | ADS ]

Spectroscopic Classification of   ASASSN-16at (AT 2016X) as a young Type II-P Supernova

ATel #8584; Xiang-Ming Zheng and Ju-Jia Zhang (Yunnan observatories)
on 24 Jan 2016; 01:50 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ju-Jia Zhang (jujia@ynao.ac.cn)

Subjects: Optical, Supernovae

We obtained an optical spectrum (range 350-900 nm) of AT 2016X (ASASSN-16at, ATel#8566) on UT 2016 Jan. 23.88 with the Li-Jiang 2.4 m telescope (LJT + YFOSC) at Li-Jiang observatory of Yunnan Observatories. For this SN, Hosseinzadeh et al. (ATel#8567) reported a featureless and blue continuum spectrum on 2016 Jan.20.75 while is not possible to classify this transient. Our spectrum is also blue and some features of young type-IIP supernova are well evolved. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin  and Tonry 2007, Ap.J. 666, 1024) shows that it matches with SN 2006bp at t = -2 days referring to the maximum brightness. Given a recession velocity of 1321 km/s for the host galaxy UGC 08041, an expansion velocity of about 14,000 km/s can be deduced from the H-alpha absorption minimum. Follow-up observations are encouraged.